There is no similarity between the pad printing ink and the screen printing ink. The screen printing ink exhibits the mechanical structure under the squeegee pressure, and the pad printing ink is more generally the property of the transfer performance.
Special printing inks The difference between screen printing inks and printing inks
There is no similarity between the pad printing ink and the screen printing ink. The screen printing ink exhibits the mechanical structure under the squeegee pressure, and the pad printing ink is more generally the property of the transfer performance. In order to achieve its permeability, screen printing inks are necessary to add a certain amount of lubricant, but the printing ink does not require such a component. The transferability of offset inks and the plasticity of offset inks should be an ideal pad printing ink. In order to achieve the deinking of the pad printing ink, the pad printing ink is added with a certain material such as a release agent, and the screen printing ink is not required. The screen printing ink has a thick ink layer and a sharp handwriting. To achieve the same effect, the color density of the printing ink must be high.
The morphology of the pad printing ink on the surface of the pad printing head requires that the pad printing ink have sufficient activity lag, otherwise the ink imprint may become unclear. On the other hand, the coherence of the print formed on the surface of the plastic head itself is significantly greater than the surface tension of the silicone rubber, and has a release function such as a thermal transfer ink on the thermal transfer film. The complete transfer of the pad printing ink to the surface of the product is the most important requirement for the pad printing ink, but the complete transfer of the ink is only ideal. In general, the ink can only transfer 86%.
Screen printing is commonly used in the field of textile printing, but at present, it is difficult to use water-based inks in the printing industry, which is another difference. There are two reasons for this defect in pad printing. One is that the steel plate has poor water resistance and is easily eroded by water-based inks. Of course, if we replace the resin plate, this factor can be ruled out, but the transferability of the rubber head will be limited, and it is still difficult to transfer the silicone rubber to sufficient water-based ink.
Although the original pad printing ink was replaced by screen printing ink, it cannot be said that the pad printing ink is a screen printing ink. The theory of the ink is suitable for all printing processes, but different printing processes have detailed requirements. Just the above requirements for pad printing inks have prompted many ink manufacturers to try to manufacture special pad printing inks. At present, we have introduced special pad printing inks, which are all improved on the basis of screen printing inks.
For more information on screen printing inks and pad printing inks, please visit our website http://
Technology: Dongguan Caihui Company
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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